What range of MAC addresses can I safely use for my virtual machines?

I intend to assign my virtual machines MAC addresses to make sure that I can set up DHCP appointments for them to make sure that they constantly get the very same IP address no matter which host hypervisor they are working on or running system they are running.

What I require to recognize is what series of MAC addresses can I make use of without anxiety that day some tool may be attached to our connect with that MAC?

I have actually read the Wikipedia write-up on MAC addresses and also this area appears to show that if I create an address with the kind 02 - XX - XX - XX - XX - XX after that it is taken into consideration an in your area carried out address.

I would certainly think this suggests that no equipment supplier would certainly ever before make use of an address beginning with 02 so I should be secure to make use of anything that begins with 02 for my virtual machines?

Many thanks for the aid.

97
2022-06-07 14:35:58
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Answers: 4

For Xen virtual machines you can make use of anything beginning with 00:16:3 E, which is the default which several monitoring devices will certainly create.

5
2022-06-07 15:04:37
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There are in fact 4 collections of Locally Administered Address Ranges that can be made use of on your network without anxiety of problem, thinking no person else has actually appointed these on your network:

x2-xx-xx-xx-xx-xx
x6-xx-xx-xx-xx-xx
xA-xx-xx-xx-xx-xx
xE-xx-xx-xx-xx-xx

Replacing x with any kind of hex value.

137
2022-06-07 14:58:51
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In instance you are making use of VMware items (ESXi / Workstation / vCenter / ), the legitimate series of by hand appointed MAC addresses is:

00:50:56:00:00:00 - 00:50:56:3F:FF:FF
11
2022-06-07 14:58:26
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The full checklist of appointed mac prefixes can be located below:

http://standards-oui.ieee.org/oui/oui.txt

There are numerous prefixes significant exclusive on that particular checklist, 02 is not one of them. If you make use of among those, you need to be reasonably secure. Remember that tools, software program, etc might additionally make use of that prefix, in which instance your opportunity of a problem rises a little.

If you are making use of arbitrarily created suffixes, your probabilities of crash are rather expensive.

14
2022-06-07 14:58:01
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